Pvc tubewells performance durability & efficiency / 
Irrigation Research Institute  
 - Lahore:  Irrigation Research Institute;   1984. 
 - 51 pages;illustrations,graphs  
 - IRR-491/Phy/T.W.131 Ist Report  .
<br/><br/>Constructional characteristics  Geohydrological data  Aquifer characteristics  
<br/><br/><br/>In English  
<br/><br/> Pbk  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics <br/>Report 
<br/><br/><label>Dewey Class. No.: </label>530 PVC 1984